In the A, B, C, D and F grading system, the first four letters are typically considered passing grades.

在 A、B、C、D 和 F 评分体系中，前四个字母通常被认为是及格。

youdao

As it does for peanuts and other foods that can cause reactions, the F. D. A. already requires manufacturers to disclose on food labels the presence of artificial colorings.

就如对待花生及其它有可能引起反应的食品一样，食品与药物管理局早就要求生产厂家在食品标签上注明含有人工色素。

youdao

The bill would give the F. D. A. new powers to enforce disease-prevention plans on food facilities, trace the source of contaminated foods quickly, and order mandatory recalls.

该法案赋予食品药品管理局新的权力来执行食品设施疾病预防计划，快速追踪受到污染的食品来源，并强制召回。

youdao

Most American colleges and universities use the grading system of A,B,C,D and F.

VOA: special.2009.03.05

There was a huge old insurrection called the Fronde, f-r-o-n-d-e.

有一起被称为投石党运动的起义

耶鲁公开课 - 欧洲文明课程节选

Imagine I have a little lamp, a little goose- one of those little gooseneck lamps, I'd put it on the table here, I'd put the height about a f-- about a foot off the table. And if I was really good, - I could hit, or time it so that when I hurt- yeah, try again. When I turn this on switch on in the lamp, at exactly the same time, I'm going to hit a key on my computer and start it running.

想象下我有一个那种小雁颈台灯-,我把它放在桌子上，大概离桌子，有一英尺那么高吧,这样挺好的，我可以打开-,或者关闭这灯,并在这同时，我可以让我电脑,开始运行。

麻省理工公开课 - 计算机科学及编程导论课程节选

In the report, Facebook earned poor marks for coal intensity (53.2 percent, the second highest of the 10 companies rated), a D for transparency, an F for infrastructure siting, and a D for mitigation strategy.

FORBES: Facebook Commits to Green Energy -- But Can It Deliver?

Basically, 44% of the hospitals reviewed were given a C, D or F.

FORBES: Move up http://i.forbesimg.com t Move down

They get grades like A for up and D or F for down markets.

FORBES: Mutual Fund Survey